Equation Application

Question

 one hot air balloon is 15 meters above the ground, and is rising at a rate of 20 meters per minute. a second balloon is 195 meters above above the ground, and is descending at a rate of 16 meters per minute. In how many minutes will the two balloons be at the same height?

Answer 1

20x+15=195-16x

Adds 16x

36x +15=195

36x=180

X=180/36

X=5

In 5 minutes they will be 115 feet